Minsu Lee is a seasoned CTO with 12 years building production-grade, event-driven platforms and mobile products from Seoul. He has led architecture and delivery for Livepass and 열정팩토리, driving Event Sourcing, CQRS and microservices stacks using Kotlin/Spring Boot, Docker/Kubernetes, Redis, MongoDB and cloud platforms. Hands-on across mobile (Flutter, Swift, Kotlin), front-end (Angular/Vue) and backend systems, he balances product-facing features like live ticketing and chatbots with robust infrastructure for scalability. An active open-source contributor, he implemented GraphQL over WebSocket subscriptions in the popular Netflix DGS framework and improved state management tooling for Dart/Flutter. Colleagues know him as a pragmatic problem solver who moves between strategic CTO duties and late-night engineering to ship critical updates. He holds a BEng in Computer and Information Engineering from Pusan National University.
MobX for the Dart language. Hassle-free, reactive state-management for your Dart and Flutter apps.
Role in this project:
Full-stack Developer
Contributions:12 releases, 40 reviews, 9 commits in 9 months
Contributions summary:Minsu primarily contributed to the MobX.dart project by implementing new features, fixing bugs, and updating dependencies related to state management. Their work involved allowing custom contexts for observables, enabling equality comparison for streams, and fixing tests for Dart 2.19 compatibility. They also upgraded the MobX dependency and adjusted CI/CD configuration.
Contributions:3 reviews, 12 commits, 2 PRs in 3 months
Contributions summary:Minsu primarily contributed to the implementation of GraphQL over WebSocket protocol support within the DGS framework. Their work involved modifying existing components and introducing new classes to handle WebSocket connections, sub-protocol negotiation, and message processing. They added sub-protocol support for `graphql-ws` and `graphql-transport-ws`, updating the client to use the sub-protocol header during handshake and implementing subscription functionality. These changes focused on enabling real-time data updates via GraphQL subscriptions.
graphqljavaspringspring-bootdgs
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